The term "corner well" can refer to a variety of situations where something is located or positioned in a corner space. Depending on the context, there are several synonyms that can be used to describe this arrangement. For example, "nook," "alcove," and "recess" can all be used to describe a corner well in a room or building. In a street or community setting, a corner well can be called a "fountain," "plaza," or "square." Other synonyms include "corner enclosure," "angle space," and "corner depression." Overall, the specific synonym used will depend on the situation and the context in which the term is being used.